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4 years ago

What is the solution of X2-9x+18=0

1 answer:

8 0

X² - 9x + 18 = 0
x = -(-9) +/- √((-9)² - 4(1)(18))
 2(1)
x = 9 +/- √(81 - 72)
 2
x = 9 +/- √(9)
 2
x = 9 +/- 3
 2
x = 4.5 + 1.5
x = 4.5 + 1.5 x = 4.5 - 1.5
x = 6 x = 3

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Natasha2012 [34]

Answer:

Part A

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Part B

The cost of the wood is 49,000

Step-by-step explanation:

Part A

The dimensions of the ladder to be made with wood are;

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The length of the ladder = 25 feet

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The required wood = 2 × 25 feet/rail + 2 feet/steps × 24 steps = 98 feet

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Part B

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The cost of the wood = 49,000

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3 years ago

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Answer:

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Step-by-step explanation:

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The combination form is 200 in the x-direction by -346 in the y-direction, or (as a vector) <200, -346>

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3 years ago

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Step-by-step explanation:

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